Pretty confident I sized the current stove properly after today.
Cold and windy with snow, have a 100,000 btu HX in the house, two 50,000’s and another 100,000 in the shop. Woke up to snow this AM so started the snow melt, house was also calling for heat and the wife was running both the dishwasher and washing machine. I do have the 450 gallons of thermal storage in the shop and the three HX in their pull of that with with a 50 plate HX between the storage and the G400, after starting the snow melt I went out i the shop and turned all three thermostats up to 65 (one for each HX).
On the way in I added more wood to the 400, once it got the new charge going good it got the water up to 176-177 and ran there for over two hours until everything else caught up. IE sidewalk started returning warmer water to the reservoir and the heaters in the shop started to cycle on and off.
Much to my chagrin it does pay to follow directions though, Sunday I worked in the basement building more storage and tried something different in how I filled it. Before in the shoulder season I tried stacking my wood just in the center over the nozzle, problem was the ends would burn up first exposing the nozzle and it seemed like it produce more smoke, so just of the heck of it I tried placing my pieces (17 inches long) across the fire box wit the thought as the center burned out it would fall in to cover the nozzle, it burnt, but never cycled off, just kinda stuck around 172 most of the day. My theory is with the wood stacked the same direction as the fresh air enters it just flowed right between the pieces and right out the nozzle. After it burnt down a bit I rearranged the pieces and it cycled off shortly afterwards.
I may try just one row again in the shoulder season but set the firewood processor for the maximum length of 24” and stack that wood separate from the rest.
One thing I have found that helps with using 17 inch long pieces is when I’m filling to place the bottom layer all the way to the back, then the second layer all the way to the front, third layer all the way to the back, etc. This keeps the ends from all being right in the center of the stove, before I think the fire would work up thru the center first and some mornings the nozzle would be exposed with charred wood all around the outside of the firebox, I’ve not had this since starting to stagger the layers or when I’m burning pole trees that I’ve cut 30-36” long.
Have my smaller rack at the stove now, about 8-10” shorter than the one that holds half a cord, should get 3 full days and a partial out of it, so if the colder weather keeps up I would figure on burning 3-4 cords a month if the snow keeps up. The snow melt almost pulls as hard as the house and shop combined when first turning it on. Thinking of changing the 30 plate out for a 20 so it doesn’t pull as hard at first, getting 140-150 degree water from the thirty plate before the tempering valve and only running 80-100 degrees to the sidewalk so the 20 should do fine.